4.7 Article

Collinear factorization of diphoton photoproduction at next to leading order

期刊

PHYSICAL REVIEW D
卷 104, 期 11, 页码 -

出版社

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.104.114006

关键词

-

资金

  1. Diamond Grant program
  2. National Science Center in Poland [2019/33/B/ST2/02588, 2017/26/M/ST2/01074]
  3. Polish-French collaboration agreements Polonium
  4. Polish National Agency for Academic Exchange
  5. European Union [824093]
  6. COPIN-IN2P3

向作者/读者索取更多资源

This study calculates the amplitude for the photoproduction of a near forward large mass diphoton at leading twist and next to leading order in the framework of collinear factorization. The validity of factorization at this order is demonstrated, with the NLO result probing the whole domain of definition of quark GPDs with both real and imaginary parts. Phenomenology of the results for medium (JLab) and higher energy (EIC) experiments will be developed in future studies.
We calculate in the framework of collinear factorization the amplitude for the photoproduction of a near forward large mass diphoton at leading twist and next to leading order (NLO) in alpha(s). We demonstrate the validity of factorization at this order, which was never achieved for such a reaction where the coefficient function describes a 2 -> 3 hard process. While the Born order amplitude was purely imaginary and only probed the x = +/-xi cross-over line of generalized parton distributions (GPD) domain, the NLO result contains both a real and an imaginary part and probes the whole domain of definition of quark GPDs. The phenomenology of our results for medium (JLab) and higher energy (EIC) experiments will be developed in a future study.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据